Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Input Power (dBm)

Input power level.

Gain (dB)

Amplifier gain.

Losses (dB)

Combined interstage and output losses.

Estimate power amplifier output level as outDbm = inDbm + gainDb - lossesDb. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Output Power (dBm)

Output power level at the antenna port.

• RF gain, noise, compression, intercept, mismatch, sensitivity, and link calculations require consistent impedance, bandwidth, frequency, reference plane, temperature, modulation, and cascade ordering. Datasheet values at different conditions cannot be combined without correction.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Power To SPL

  Estimate loudspeaker output level as splAtMeterDb = sensitivityDbPerW1m + 10 * log10(amplifierWatts).

• dBm To Watts

  Convert an absolute power level in dBm to watts.

• PA 1db Compression

  Input power at the measured one-decibel gain compression point from output power and small-signal gain.